1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/texture.c	Mon Nov 21 10:16:09 2011 +0200
     1.3 @@ -0,0 +1,52 @@
     1.4 +/*
     1.5 +256-color 3D graphics hack for real-mode DOS.
     1.6 +Copyright (C) 2011  John Tsiombikas <nuclear@member.fsf.org>
     1.7 +
     1.8 +This program is free software: you can redistribute it and/or modify
     1.9 +it under the terms of the GNU General Public License as published by
    1.10 +the Free Software Foundation, either version 3 of the License, or
    1.11 +(at your option) any later version.
    1.12 +
    1.13 +This program is distributed in the hope that it will be useful,
    1.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 +GNU General Public License for more details.
    1.17 +
    1.18 +You should have received a copy of the GNU General Public License
    1.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 +*/
    1.21 +
    1.22 +#include <stdlib.h>
    1.23 +#include "texture.h"
    1.24 +#include "palman.h"
    1.25 +
    1.26 +struct texture *tex_load(const char *fname)
    1.27 +{
    1.28 +	return 0;	/* TODO */
    1.29 +}
    1.30 +
    1.31 +struct texture *tex_gen_checker(int xsz, int ysz, int ush, int vsh, int c1, int c2)
    1.32 +{
    1.33 +	int i, j;
    1.34 +	struct texture *tex;
    1.35 +	unsigned char *pptr;
    1.36 +
    1.37 +	if(!(tex = malloc(sizeof *tex))) {
    1.38 +		return 0;
    1.39 +	}
    1.40 +	if(!(tex->pixels = malloc(xsz * ysz))) {
    1.41 +		free(tex);
    1.42 +		return 0;
    1.43 +	}
    1.44 +	tex->width = xsz;
    1.45 +	tex->height = ysz;
    1.46 +
    1.47 +	pptr = tex->pixels;
    1.48 +	for(i=0; i<ysz; i++) {
    1.49 +		for(j=0; j<xsz; j++) {
    1.50 +			int c = ((i >> vsh) & 1) == ((j >> ush) & 1) ? c1 : c2;
    1.51 +			*pptr++ = c;
    1.52 +		}
    1.53 +	}
    1.54 +	return tex;
    1.55 +}